Index: du/du.1
===================================================================
RCS file: /home/ncvs/src/usr.bin/du/du.1,v
retrieving revision 1.33
diff -u -r1.33 du.1
--- du/du.1	25 Feb 2008 19:06:43 -0000	1.33
+++ du/du.1	11 Apr 2008 06:56:02 -0000
@@ -44,7 +44,7 @@
 .Op Fl a | s | d Ar depth
 .Op Fl c
 .Op Fl l
-.Op Fl h | k | m
+.Op Fl h | k | m | i
 .Op Fl n
 .Op Fl x
 .Op Fl I Ar mask
@@ -52,10 +52,10 @@
 .Sh DESCRIPTION
 The
 .Nm
-utility displays the file system block usage for each file argument
+utility displays the file system block or inode usage for each file argument
 and for each directory in the file hierarchy rooted in each directory
 argument.
-If no file is specified, the block usage of the hierarchy rooted in
+If no file is specified, the block or inode usage of the hierarchy rooted in
 the current directory is displayed.
 .Pp
 The options are as follows:
@@ -77,6 +77,8 @@
 "Human-readable" output.
 Use unit suffixes: Byte, Kilobyte, Megabyte,
 Gigabyte, Terabyte and Petabyte.
+.It Fl i
+Display inode usage instead of block usage.
 .It Fl r
 Generate messages about directories that cannot be read, files
 that cannot be opened, and so on.
Index: du/du.c
===================================================================
RCS file: /home/ncvs/src/usr.bin/du/du.c,v
retrieving revision 1.45
diff -u -r1.45 du.c
--- du/du.c	25 Feb 2008 19:06:43 -0000	1.45
+++ du/du.c	11 Apr 2008 06:56:02 -0000
@@ -65,6 +65,9 @@
 #include <sysexits.h>
 #include <unistd.h>
 
+/* Count inodes or file size */
+#define		COUNT	(iflag ? 1 : p->fts_statp->st_blocks)
+
 SLIST_HEAD(ignhead, ignentry) ignores;
 struct ignentry {
 	char			*mask;
@@ -91,21 +94,21 @@
 	int		listall;
 	int		depth;
 	int		Hflag, Lflag, Pflag, aflag, sflag, dflag, cflag;
-	int		hflag, lflag, ch, notused, rval;
+	int		hflag, iflag, lflag, ch, notused, rval;
 	char 		**save;
 	static char	dot[] = ".";
 
 	setlocale(LC_ALL, "");
 
 	Hflag = Lflag = Pflag = aflag = sflag = dflag = cflag = hflag =
-	    lflag = 0;
+	    iflag = lflag = 0;
 
 	save = argv;
 	ftsoptions = 0;
 	depth = INT_MAX;
 	SLIST_INIT(&ignores);
 
-	while ((ch = getopt(argc, argv, "HI:LPasd:chklmnrx")) != -1)
+	while ((ch = getopt(argc, argv, "HI:LPasd:chiklmnrx")) != -1)
 		switch (ch) {
 			case 'H':
 				Hflag = 1;
@@ -147,6 +150,9 @@
 					    "setenv: cannot set BLOCKSIZE=512");
 				hflag = 1;
 				break;
+			case 'i':
+				iflag = 1;
+				break;
 			case 'k':
 				hflag = 0;
 				if (setenv("BLOCKSIZE", "1024", 1) == -1)
@@ -241,10 +247,14 @@
 					break;
 
 				p->fts_parent->fts_bignum +=
-				    p->fts_bignum += p->fts_statp->st_blocks;
+				    p->fts_bignum += COUNT;
 
 				if (p->fts_level <= depth) {
-					if (hflag) {
+					if (iflag) {
+					(void) printf("%jd\t%s\n",
+						(intmax_t)p->fts_bignum,
+						p->fts_path);
+					} else if (hflag) {
 						(void) prthumanval(howmany(p->fts_bignum, blocksize));
 						(void) printf("\t%s\n", p->fts_path);
 					} else {
@@ -271,18 +281,22 @@
 					break;
 
 				if (listall || p->fts_level == 0) {
-					if (hflag) {
-						(void) prthumanval(howmany(p->fts_statp->st_blocks,
+					if (iflag) {
+						(void) printf("%jd\t%s\n",
+							(intmax_t)COUNT,
+							p->fts_path);
+					} else if (hflag) {
+						(void) prthumanval(howmany(COUNT,
 							blocksize));
 						(void) printf("\t%s\n", p->fts_path);
 					} else {
 						(void) printf("%jd\t%s\n",
-							(intmax_t)howmany(p->fts_statp->st_blocks, blocksize),
+							(intmax_t)howmany(COUNT, blocksize),
 							p->fts_path);
 					}
 				}
 
-				p->fts_parent->fts_bignum += p->fts_statp->st_blocks;
+				p->fts_parent->fts_bignum += COUNT;
 		}
 		savednumber = p->fts_parent->fts_bignum;
 	}
@@ -291,7 +305,9 @@
 		err(1, "fts_read");
 
 	if (cflag) {
-		if (hflag) {
+		if (iflag) {
+			(void) printf("%jd\ttotal\n", (intmax_t)savednumber);
+		} else if (hflag) {
 			(void) prthumanval(howmany(savednumber, blocksize));
 			(void) printf("\ttotal\n");
 		} else {
@@ -454,7 +470,7 @@
 {
 	(void)fprintf(stderr,
 		"usage: du [-H | -L | -P] [-a | -s | -d depth] [-c] "
-		"[-l] [-h | -k | -m] [-n] [-x] [-I mask] [file ...]\n");
+		"[-l] [-h | -k | -m | -i] [-n] [-x] [-I mask] [file ...]\n");
 	exit(EX_USAGE);
 }